Exploring Exponential Growth: Equations & Graphs for 8th Grade

Quiz
•
English, Mathematics
•
8th Grade
•
Hard
Standards-aligned
Anthony Clark
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A population of bacteria doubles every 3 hours. If you start with 500 bacteria, how many will there be after 12 hours? Set up the equation and solve it.
4000
10000
2000
8000
Tags
CCSS.HSF.LE.A.4
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A car's value decreases by 20% each year. If the car was originally worth $20,000, what will its value be after 5 years? Write the equation and find the answer.
$4,000.00
$8,000.00
$6553.60
$10,000.00
Tags
CCSS.HSF.BF.A.2
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A bank offers an interest rate of 5% compounded annually. If you deposit $1,000, how much money will you have after 10 years? Set up the exponential equation and solve it.
$1,628.89
$2,000.00
$1,500.00
$1,200.00
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A certain species of fish in a lake grows exponentially. If there are currently 200 fish and the population triples every year, how many fish will there be in 4 years? Write the equation and calculate the result.
16200
12000
4000
8000
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A tree grows at a rate of 1.5 times its height every year. If the tree is currently 2 meters tall, how tall will it be after 3 years? Set up the equation and solve it.
4.5 meters
3 meters
6.75 meters
9 meters
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A smartphone's battery life decreases exponentially. If it lasts 24 hours when fully charged, how long will it last after 3 cycles of charging and discharging? Write the equation and find the answer.
Lasts 12 hours after 3 cycles.
Less than 24 hours after 3 cycles, exact value depends on decay constant k.
Lasts 30 hours after 3 cycles.
Exactly 24 hours after 3 cycles.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A viral video on social media is shared by 100 people and each person shares it with 3 more people every hour. How many shares will there be after 4 hours? Set up the exponential equation and solve it.
4000
12000
3000
8000
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